The Carbon Cycle Crossword Puzzle

QUESTIONS LIST:

• decomposition: process that occurs when plants and animals die
• dry ice: the solid form of carbon dioxide
• photosynthesis: plants use carbon dioxide and water in the presence of sunlight to make food
• respiration: carbon dioxide is transferred to the atmosphere when plants and animals breathe
• combustion: during this process fossil fuels give off carbon dioxide
• non flammable: this makes carbon dioxide suitable to be used in fire extinguishers
• lime water: also known as calcium hydroxide
• deforestation: a human activity that disrupts the carbon cycle
• cloudy: lime water looks this way when carbon dioxide is bubbled through it
• fossil fuel: this is formed when living organisms die and decay